LF Line Feed (FE)                       SUB Substitute

   VT Vertical Tabulation (FE)             ESC Escape

   FF Form Feed (FE)                       FS File Separator IS)

   CR Carriage Return (FE)                 GS Group Separator (IS)

   SO Shift Out                            RS Record Separator (IS)

   SI Shift In                             US Unit Separator (IS)

                                           DEL Delete [1]

   ________
   NOTE: (CC) Communication Control
         (FE) Format Effector
         (IS) Information Separator
   [1] In the strict sense, DEL is not a control character.  (See 5.2)







 
RFC 20            ASCII format for Network Interchange      October 1969


4.2 Graphic Characters

   Column/Row  Symbol      Name

   2/0         SP          Space (Normally Non-Printing)
   2/1         !           Exclamation Point
   2/2         "           Quotation Marks (Diaeresis [2])
   2/3         #           Number Sign [3,4]
   2/4         $           Dollar Sign
   2/5         %           Percent
   2/6         &           Ampersand
   2/7         '           Apostrophe (Closing Single Quotation Mark
                           Acute Accent [2])
   2/8         (           Opening Parenthesis
   2/9         )           Closing Parenthesis
   2/10        *           Asterisk
   2/11        +           Plus
   2/12        ,           Comma (Cedilla [2])
   2/13        -           Hyphen (Minus)
   2/14        .           Period (Decimal Point)
   2/15        /           Slant
   3/10        :           Colon
   3/11        ;           Semicolon
   3/12        <           Less Than
   3/13        =           Equals
   3/14        >           Greater Than
   3/15        ?           Question Mark
   4/0         @           Commercial At [3]
   5/11        [           Opening Bracket [3]
   5/12       \            Reverse Slant [3]
   5/13        ]           Closing Bracket [3]
   5/14        ^           Circumflex [2,3]
   5/15        _           Underline
   6/0         `           Grave Accent [2,3] (Opening Single Quotation
                                   Mark)
   7/11        {           Opening Brace [3]
   7/12        |           Vertical Line [3]
   7/13        }           Closing Brace [3]
   7/14        ~           Overline [3] (Tilde [2]; General Accent [2])

   ________
      2 The use of the symbols in 2/2, 2/7, 2/12, 5/14, /6/0, and 7/14
   as diacritical marks is described in Appendix A, A5.2
      3 These characters should not be used in international interchange
   without determining that there is agreement between sender and
   recipient.  (See Appendix B4.)
      4 In applications where there is no requirement for the symbol #,
   the symbol (Pounds Sterling) may be used in position 2/3.




 
RFC 20            ASCII format for Network Interchange      October 1969


5. Definitions

5.1 General

      (CC)  Communication Control: A functional character intended to
   control or facilitate transmission of information over communication
   networks.
      (FE)  Format Effector: A functional character which controls the
   layout or positioning of information in printing or display devices.
      (IS) Information Separator: A character which is used to separate
   and qualify information in a logical sense.  There is a group of four
   such characters, which are to be used in a hierarchical order.

5.2 Control Characters